| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 3.34/5 | 4.26/5 |
| Vol 2 | 3.20/5 | 4.33/5 |
| Vol 3 | 3.11/5 | 4.29/5 |
| Vol 4 | 3.35/5 | 4.27/5 |
| Vol 5 | 3.25/5 | 4.22/5 |
| Vol 6 | 3.34/5 | 4.29/5 |
| Vol 7 | 3.13/5 | 4.16/5 |
| Vol 8 | 3.44/5 | 4.34/5 |
| Vol 9 | 3.23/5 | 4.21/5 |
| Vol 10 | 3.39/5 | 4.33/5 |
| Vol 11 | 3.10/5 | 4.20/5 |
| Vol 12 | 3.22/5 | 4.30/5 |
| Vol 13 | 3.27/5 | 4.29/5 |
| Vol 14 | 3.25/5 | 4.27/5 |
| Vol 15 | 3.29/5 | 4.33/5 |
| Vol 16 | 3.10/5 | 4.24/5 |
| Vol 17 | 3.51/5 | 4.37/5 |
| Vol 18 | 3.33/5 | 4.26/5 |
| Vol 19 | 3.49/5 | 4.37/5 |
| Vol 20 | 3.29/5 | 4.26/5 |
| Vol 21 | 3.58/5 | 4.37/5 |
| Overall | 3.30/5 | 4.37/5 |